280074912 has 144 divisors (see below), whose sum is σ = 812010528. Its totient is φ = 84464640.

The previous prime is 280074911. The next prime is 280074923. The reversal of 280074912 is 219470082.

It is a happy number.

280074912 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (280074911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 989523 + ... + 989805.

It is an arithmetic number, because the mean of its divisors is an integer number (5638962).

Almost surely, 2^280074912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 280074912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406005264).

280074912 is an abundant number, since it is smaller than the sum of its proper divisors (531935616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

280074912 is a wasteful number, since it uses less digits than its factorization.

280074912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 280074912 is about 16735.4388051225. The cubic root of 280074912 is about 654.2716001971.

The spelling of 280074912 in words is "two hundred eighty million, seventy-four thousand, nine hundred twelve".